Showerhead



FIG. 1 is a front perspective view of a showerhead showing our design;

FIG. 2 is a front elevational view thereof; the rear elevational view being a mirror image thereof;

FIG. 3 is a left side elevational view thereof; the right side elevational view being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines in the figures are for the purpose of illustrating portions of the showerhead that form no part of the claimed design. 

The ornamental design for a showerhead, as shown and described. 